Chair restraining device



FIG. 1 is a perspective view of a chair restraining device embodying my design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a side elevation view thereof;

FIG. 4 is a bottom plan view thereof; and

FIG. 5 is an end elevation view thereof. 

The ornamental design for a chair restraining device, as shown. 